258375423209 has 2 divisors, whose sum is σ = 258375423210. Its totient is φ = 258375423208.

The previous prime is 258375423193. The next prime is 258375423211. The reversal of 258375423209 is 902324573852.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139705507984 + 118669915225 = 373772^2 + 344485^2 .

It is a cyclic number.

It is not a de Polignac number, because 258375423209 - 2⁴ = 258375423193 is a prime.

It is a Sophie Germain prime.

Together with 258375423211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (258375423269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129187711604 + 129187711605.

It is an arithmetic number, because the mean of its divisors is an integer number (129187711605).

Almost surely, 2^258375423209 is an apocalyptic number.

It is an amenable number.

258375423209 is a deficient number, since it is larger than the sum of its proper divisors (1).

258375423209 is an equidigital number, since it uses as much as digits as its factorization.

258375423209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 258375423209 in words is "two hundred fifty-eight billion, three hundred seventy-five million, four hundred twenty-three thousand, two hundred nine".